Stargazer Stargazer ← Back to home

Languages

Scala

Leaderboard for 4 October 2026

The biggest Scala projects on GitHub, the ones gaining stars fastest right now, and the same leaderboard a year ago. We have recorded it every day since December 2018.

Most starred today

  1. 1 twitter/the-algorithm Source code for the X Recommendation Algorithm 74k +13 / 7d
  2. 2 apache/spark Apache Spark - A unified analytics engine for large-scale data processing 44k +53 / 7d
  3. 3 lichess-org/lila ♞ lichess.org: the forever free, adless and open source chess server ♞ 19k +28 / 7d
  4. 4 prisma/prisma1 💾 Database Tools incl. ORM, Migrations and Admin UI (Postgres, MySQL & MongoDB) [deprecated] 16k
  5. 5 scala/scala Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3 15k +1 / 7d
  6. 6 akka/akka-core A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments. 13k +1 / 7d
  7. 7 playframework/playframework The Community Maintained High Velocity Web Framework For Java and Scala. 13k
  8. 8 apache/predictionio PredictionIO, a machine learning server for developers and ML engineers. 13k +4 / 7d
  9. 9 rtyley/bfg-repo-cleaner Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala 12k +6 / 7d
  10. 10 yahoo/CMAK CMAK is a tool for managing Apache Kafka clusters 12k
  11. 11 gitbucket/gitbucket A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility 9.4k +1 / 7d
  12. 12 delta-io/delta An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs 9.0k +15 / 7d
  13. 13 twitter/finagle A fault tolerant, protocol-agnostic RPC system 8.9k +1 / 7d
  14. 14 twitter-archive/snowflake Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees. 7.8k
  15. 15 OpenXiangShan/XiangShan Open-source high-performance RISC-V processor 7.3k +15 / 7d
  16. 16 snowplow/snowplow The leader in Customer Data Infrastructure 7.0k
  17. 17 gatling/gatling Modern Load Testing as Code 7.0k
  18. 18 lhartikk/ArnoldC Arnold Schwarzenegger based programming language 6.9k
  19. 19 apache/openwhisk Apache OpenWhisk is an open source serverless cloud platform 6.8k +4 / 7d
  20. 20 scala/scala3 The Scala 3 compiler, also known as Dotty. 6.3k +5 / 7d
  21. 21 guardian/frontend The Guardian DotCom. 5.9k
  22. 22 fpinscala/fpinscala Code, exercises, answers, and hints to go along with the book "Functional Programming in Scala" 5.9k +5 / 7d
  23. 23 typelevel/cats Lightweight, modular, and extensible library for functional programming. 5.5k
  24. 24 linkerd/linkerd Old repo for Linkerd 1.x. See the linkerd2 repo for Linkerd 2.x. 5.3k
  25. 25 microsoft/SynapseML Simple and Distributed Machine Learning Python Library porting ML algorithms for Spark 5.2k +1 / 7d

Climbing fastest this week

A different population from the leaderboard above. These are ranked by stars gained, so a project going from 200 to 2,000 shows up here and can never appear on a top-100 list by total stars.

  1. 1 apache/spark Apache Spark - A unified analytics engine for large-scale data processing +67 44k total
  2. 2 lichess-org/lila ♞ lichess.org: the forever free, adless and open source chess server ♞ +32 19k total
  3. 3 delta-io/delta An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs +19 9.0k total
  4. 4 OpenXiangShan/XiangShan Open-source high-performance RISC-V processor +17 7.3k total
  5. 5 scala/scala3 The Scala 3 compiler, also known as Dotty. +6 6.3k total
  6. 6 scala/scala Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3 +5 15k total
  7. 7 akka/akka-core A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments. +3 13k total
  8. 8 playframework/playframework The Community Maintained High Velocity Web Framework For Java and Scala. +1 13k total
  9. 9 scalapb/ScalaPB Protocol buffer compiler for Scala. +1 1.3k total
  10. 10 orbeon/orbeon-forms Orbeon Forms - Build, run, and manage web forms on-premises or in the cloud. +1 545 total

A year ago today

The same leaderboard on 4 October 2025. 1 of today's top ten were not in it.

  1. 1 twitter/the-algorithm 67k
  2. 2 apache/spark 42k
  3. 3 lichess-org/lila 17k
  4. 4 prisma/prisma1 16k
  5. 5 scala/scala 14k
  6. 6 akka/akka 13k
  7. 7 playframework/playframework 13k
  8. 8 apache/predictionio 13k
  9. 9 yahoo/CMAK 12k
  10. 10 rtyley/bfg-repo-cleaner 12k

Browse every language.